87 Faint high-frequency noise in the instrument panel area during A/C operation
87 20 06 2056182/3 June 17, 2020. Supersedes Technical Service Bulletin Group 87 number 19-00 dated
October 22, 2019 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

RS3

2017 - 2020

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised header (More refined model codes)

2

10/22/2019

Revised header (Added MY 2020)
Revised Production Solution (Statement is no longer applicable)
Revised Service (Updated Part Number for locking fluid)
Revised Required Parts and Tools (Updated Part Number for locking fluid and
photo)

1

09/20/2019

Initial publication

Customer states:
 A faint, high-frequency noise is heard from the instrument panel area when the air conditioning is active. The
noise can even be heard from the rear ventilation outlet. The noise occurs at engine speeds from 1500 to 2000
rpm.
 If the air conditioning is switched off, the noise is eliminated.
Workshop findings:
 The symptom can be easily duplicated.

Technical Background
Based on the air conditioning compressor load requirements, in certain atmospheric conditions, high-frequency
vibrations can be generated by the compressor are transferred into the refrigerant circuit inside the vehicle.

Page 1 of 4
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Production Solution
Not applicable.

Service
Do not replace the air conditioning compressor for this condition. Compressor replacement will not eliminate this
noise. Reproduce the customer concern. The solution described in this TSB is only relevant to the vehicles for
which this TSB appears.
1. Install balance weight part number
5Q0 820 899 on the refrigerant line
(Figure 1). Install the balance weight
using 2 bolts part number WHT 003
121. Apply medium strength thread
locking compound to the bolts such
as locking fluid D 185 410 A2.

Figure 1. Balance weight positioning on the low side refrigerant line.
2. Tighten the bolts to 13 Nm (+/- 3 Nm)
(Figure 2).

Figure 2. Specification for the positioning of the balance weight.

Page 2 of 4
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Warranty
Claim Type:

 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

8734

Damage Code:

0020

Labor Operations:

Install balance weight

8743 9999

20 TU

Diagnostic Time:

GFF

No allowance

0 TU

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

Claim Comment:

As per TSB #2056182/3

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools
The part numbers mentioned in this TSB are different than the ones listed in ETKA. Only use parts listed in this
TSB, this includes superseding part numbers!
Part Number

Part Description

Quantity

5Q0820899

01

Balance weight

Page 3 of 4
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

WHT003121

02

Bolt
D185410A2 (or
equivalent medium
strength thread
locking fluid)
See ETKA

Shop supply
Liquid locking fluid

Fasteners, Bolts, Nuts, and Screws as needed per the
Repair Manual

See ETKA/ELSA

Additional Information
All parts and service references provided in this TSB (2056182) are subject to change and/or removal.
©2020 Audi of America, Inc. All rights reserved. The information contained in this document is based on the
latest information available at the time of printing and is subject to the copyright and other intellectual property
rights of Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes
at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites without the prior expressed written permission of the
publisher.

Page 4 of 4
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.